Embroidery hoop



Feb. .23 1926.

G. A. CARLSON EMBROIDERY HOOP Filed August 1.7 1925 Patented Feb. 23, 1926.

tji tl i ihl' t ti eusrnv a. canteen, or crrrcneo, retrac s, assrenon o sine BOYE nnnntn core- PANY, or ntense, ti-m nors, it stat m n or imitators.

ninnnornnar r cer.

Application filed August 1 7, 1925'. Serial to. 50,611.

To all whom it may concern.

Be known that I, Gris'riiv A. CARLSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful In'iprovement in Embroidery Hoops, of which the following is a specification.

This invention relates particularly to embroidery hoops wherein an adjustable outer hoop is employed in combination with an inner hoop, whereby the outer hoop may be clamped upon the inner hoop with the material to be embroidered stretched over the inner hoop and clamped between the two hoops.

The primary object of the invention is to provide an improved device of the character mentioned which is provided with means for effectively gripping he fabric interposed between the inner and outer hoops, such means being provided without substantially increasing the cost of the device.

The invention is illustrated in the accompanying drawing, in whichf Fig. 1 represents a plan view of the improved device; Fig. 2, an elevational view of the outer hoop; Fig. 3, an elevational view of the outer hoop with the cam-member removed and the ends of the hoop separated; Fig. 4:, a broken elevational view of the inner hoop employed; Fig. 5, an enlarged broken sectional view taken as indicated at line 5 of Fig. 1; Fig. 6, a broken inner view of the improved form of the inner hoop, showing how the end portions are joined together; and Fig. 7, an enlarged sectional view taken as indicated at line 7 of Fig. 6.

In the illustration given, A designates the inner hoop which preferably consists of a split-ring formed from sheet-metal; and

B designates the outer hoop which preferably comprises a split-ring formed from sheet-metal and provided with means for contracting it upon the inner hoop.

While it is preferred to form both hoops of sheetanetal, any suitable sheet material may be employed and is to be understood as within the scope of the appended claim.

In the illustration given, the inner hoop A. is in the form of a split-ring formed from sheet material, such as tin. This split-ring 'is provided at its edges with hollow beads 1 formed by curving the metal inwardly at its edges so that the beads will be disposed within the circumferential wall of the ring,

that is at the inner circun'if-erence of the ring. The end-portions of the split-ringare indicated at 1". [it the heading ends, wire guide members 1' are inserted. The inner ring is providedwith a central annular corrugation 1 affording an external annular groove.

The outer ring B preferably is formed from sheet-metal, such as tin. It is provided at its lateral edges with external heads 2. The ends of the split-ring are indicated at 2. The beads are fitted with wire-guides 2 which are secured at one end within the beads 2 and are free to slide at the other end within the beads 2 at the other end of the split-ring. It will be understood that in Fig. 3 the outer ring B is shown as unduly expanded. The outer ring is further provided centrally with an annular corrugation 2, thus affording an internal annular rib which is adapted to interlock with the, external annular groove of the ring A. Fig. 5 shows the parts greatly enlarged and illustrates the manner in which a sheet of fabric 3 is clamped between the rings. M The outer hoop B has secured to itsouter surface at the end portions metal blocks 4, one of which is equipped with a pivot-stud 5 and the other of which is equipped with a cam-stud 6. Mounted on the pivot-stud 5 is a disk-like cam-member 7 which is provided with a cam-slot 7 which engages the cam-stud 6. The member 7 may be turned about the pivot 5 to expand the outer split ring, or to contract it. When the outer ring is contracted in diameter, the corrugations 2 and 1 produce a corrugation 8 in the fabric, as shown in Fig. 5. Thus, the fabric is securely held between the outer and inner rings.

While it is preferred to have the corruga- (ions 1 and 2 struck inwardly and to provide the outer ring with means for eflecting a change of diameter to effect the clamping action of the rings upon the fabric, obviously the construction may be modified as desired. y p

In the modified form of the inner ring which is illustrated in Figs. 6 and 7, the end portions of the ring, which is of sheet-metal, are permanently connected together by means of a sheet-metal clip 8. The inner ring is itself designated A. The clip is provided at its end portions with lateral flanges 8 which are struck into detents, or

recesses, 9 in the lateral beads 10 with which of inserting the clip may be employed. It

is preferred, however, tomake the clip originally of V-shaped cross-section so that its flanges will enter between the beads 10 and then strike the clip downwardly so that it will lie against the inner surface of the ring and will at the same time force the flanges to make indentations in the beads and be retained therein.

The improved construction provides for the effective gripping and holding of the fabric between the inner and outer rings, and the cost of manufacturing the embroidery hoop is not substantially increased.

What I regard as new, and desire to secure by Letters Patent, is:

An inner ring for an embroidery hoop comprising a sheet metal member of annular form having lateral inwardly curled beads, and a sheet metal clip overlapping the end portions of said ring and interposed between said beads, the lateral edges of the end portions of said clip engaging indents in said beads.

GUSTAV A. CARLSON. 

